Table of Contents


Sedimentary Rocks 5.3


Vocabulary
Sediment-small,solid pieces of materials
Erosion-carry away the fragments of rocks
Deposition-process by which sediment settles out water
Compaction-process that presses sediments together
Cementation-process which dissolved minerals crystallize together
Clastic Rock-forms when rock fragments are squeezed together
Organic Rock-forms when remains of plants are deposited in thick layers
Chemical Rock-forms when minerals dissolved in a solution crystallize

Outline


From Sediment to Rock
  • Sediment
    • small solid pieces of material
  • water, wind, and ice
    • carry sediment and deposit in layers
Erosion
  • Destructive forces
    • breaking rocks on earth's surface
  • forces
    • heat
    • cold
    • rain
    • ice
    • waves
Deposition
  • water and wind
    • deposits sediment
  • sediments might include other things
    • shells
    • bones
    • leaves
    • stems
Compaction
  • over million years of compaction
    • thick layers of sediment build
  • compaction
    • compacts sediment, squeezing them together
Cementation
  • minerals in rock slowly dissolve
    • dissolved minerals go in spaces between particles
  • cementation and compaction
    • make solid sedimentary rock